- Experimental investigation of the competitive relationship between soot . . .
Apart from soot radiation, this hyperspectral imager also measures the CN* (388 nm: B 2 Σ +-X 2 Σ +), CH* (431 nm: A 2 Δ-X 2 Π), C 2 * (the strongest spectral line at 516 nm: d 3 Π g-a 3 Π u), CO 2 * (continuous spectrum at 350–600 nm: A 1 B 2-X 1 Σ g +), and NH 2 * (630 nm: A 2 A 1-X 2 B 1, together with H 2 O* and NO 2
- Spatially Resolved Measurements of CN, CH, NH, and H2CO Concentration . . .
B2R-X2R (1, 0) at 359 nm, (b) NH A3P-X3R (0, 0) at 336 nm, and (c) CH B2R-X2P (0, 0) at 387 nm (0, 0) transitions was most appropriate Laser radi-ation at 359 nm was generated in RDC 365* (radiant dyes) dissolved in dioxan with a typical pulse energy of 5 mJ and a spectral bandwidth of 0 2 cm emission and absorption [9], respectively 1 A
- Fluorescence emission induced by the femtosecond filament transmitting . . .
As the femtosecond filament transmits through the butane air flame, apart from the spectral lines from N 2 and N 2 +, there exist spectral bands around 386 (384–388 nm), 416 (414–420 nm) and 430 (428–432 nm) nm, which respectively come from the B 2 Σ − X 2 Σ transition of CN radical, d 3 Π g − a 3 Π u transition of C 2 radical
- Spatially resolved measurements of CN, CH, NH, and H
Spatially resolved measurements of species profiles were performed for CN, CH, (0, 0) transitions was most appropriate Laser radition at 359 nm was generated in RDC 365* (radiant dyes) dissolved in dioxan with a typical pulse energy of 5 mJ and a spectral bandwidth of 0 2 cm 1 A band-pass lter with a center wavelength of 390 5 nm
- Combined cavity ringdown absorption and laser-induced fluorescence . . .
At 388 nm, optimal flame values of T + Λ are 0 00015, expressed as a cavity loss rate of 150 ppm pass and observed as a 20-μs ringdown decay time Laser intensity variations do not contribute to the uncertainty, as they would in typical absorption measurements, because the absorption is determined as a time decay Δν is the overlap
- Effects of source gases on the growth of carbon nanotubes
Fig 1 shows that OES spectra detected from the plasma of C 2 H 2 –NH 3, C 3 H 4 –NH 3 and CO–NH 3 gas mixtures for CNTs growth For the C 2 H 2 –NH 3 and C 3 H 4 –NH 3 gas mixture, the following emission lines were commonly observed Chemical species identified in this study include NH at 336 nm, N 2 + at 358 5 nm, CN at 386, 387 and 388 nm, CH at 431 nm, C2 at 436 nm, H 2 at 541 5
- Bond Dissociation Energies, D o 298 , for X-Y - UMass
Most data from CRC handbook of Chemistry and Physics, 85th ed , D R Lide, ed , CRC press, Boca Raton, FL, 2004, p 9-65 Uncertainties range from less that 1 kJ mol to ca 20 kJ mol (5 kcal mol) and are listed in the CRC handbook Additional Bond Dissociation Energies kJ mol (kcal mol)
- Ionization and dissociation of acetonitrile by intense femtosecond . . .
Photoionization and photodissociation of CH 3 CN were studied by a linear time of flight mass spectrometer coupled with 800 nm, 50 fs laser pulses at intensities of 6 3×10 13 −1 2×10 14 W cm 2 The laser power dependences for principal ions CH 3 CN +, CH 2 CN +, CHCN + and CCN + were measured, which are consistent with the numbers of photons required to produce the ions via multiphoton
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